Graceful Restart (GR) JN0-364 Practice Questions (Page 2)

Questions 6–10

1. 6application · medium

   A network engineer is configuring LDP graceful restart on a router that will act as a helper for a neighboring LDP peer. The engineer wants to ensure that the LDP session is not torn down when the peer restarts, and that label bindings are preserved. What must be configured on the helper router?

   • ALDP graceful restart helper mode
   • BLDP label withdrawal delay
   • CLDP targeted hello
   • DLDP session protection
   Reveal Solution Discussion Select an answer first
2. 7foundation · easy

   In OSPF graceful restart, what is the purpose of the grace period (or restart interval)?

   • AIt determines the maximum number of routes that can be preserved during a restart
   • BIt sets the time between OSPF hello packets during normal operation
   • CIt specifies the time after which the restarting router must flush its routing table
   • DIt defines how long the helper router will wait before declaring the restarting router dead
   Reveal Solution Discussion Select an answer first
4. 8foundation · easy

   Which statement correctly describes the LDP graceful restart mechanism?

   • ALDP requires all neighbors to recompute label bindings after a restart
   • BLDP GR only works for point-to-point LSPs
   • CLDP uses a separate control protocol to coordinate the restart
   • DLDP preserves its label forwarding table during a restart and signals its neighbors to keep the LSPs
   Reveal Solution Discussion Select an answer first
5. 9foundation · easy

   What is the default behavior of a Junos router acting as an IS-IS helper?

   • AIt continues to advertise the restarting router's routes and forwards traffic for a limited time
   • BIt only supports helper mode for point-to-point adjacencies
   • CIt requires explicit configuration to enable helper mode for IS-IS
   • DIt immediately tears down the adjacency when it detects a restart
   Reveal Solution Discussion Select an answer first
6. 10foundation · easy

   What is the primary purpose of graceful restart (GR) in a high availability network?

   • ATo reduce the time required for routing protocol convergence after a link failure
   • BTo allow a router to restart its control plane without causing a disruption to the forwarding of traffic
   • CTo provide redundant power supplies and cooling for network devices
   • DTo automatically reroute traffic around a failed link using alternate paths
   Reveal Solution Discussion Select an answer first